The origins of the Rhythm Heaven series are noble. One of the legends of Japanese music, Tsunku, got involved with Nintendo and produced the first game in an effort to develop the player’s rhythm skills. You might assume that all rhythm games do that, but in reality, most rhythm games are highly visual, and players rely as much, if not more, on their eyes to play those games as on their ears. Rhythm Heaven was different in that the game doesn’t rely on visual input at all. The graphics are there, but all the cues and inputs are delivered through…